Ore-scouring apparatus



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W; A. KONBMAN.. ORE SGOUBING APEARATUS. f No. 560,856. Patented May 26,1896..

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- W. A. KONBMAN.

ORE SGOURING APPARATUS.

Patented May 26, 1896.

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W. A. KONBMAN. OPP SGOUPING APPARATUS.

N0.56o,856. P Patented May 26, 1896. Y

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UNITED ,y STATES IVILLIAM A. KONEMAN,

OF CHICAGO, ILLINOIS.

ORE-SCOURING APPARATUS.

SPECIFICATION forming part of Letters Pat-ent No. 560,856, dated May 26,1896. Application led MarchG, i894. Renewed October 24,1895. Serial No.566,783. (No model.)

To all whom it may con/cern: l

Be it known that LWILLIAM A. KONEMAN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Ore-Scouring Apparatus, ofwhich the following is a specification.

The object of my improvement is to provide an apparatus of novelconstruction, rendering it peculiarly effective in its purpose forscouring pulverized ore, particularly of the variety bearing preciousmetal (gold or silver) after it has been subjected to roasting, andthereby cleanse the contained atoms of gold or silver of any substanceor coatingfilm tending to hinder or retard amalgamation or interferewith any other treatment to which the ore is subsequently subjected forrecovering from it the precious metal, and as an incident of theconstruction and manner of operation of my improved apparatusit is myfurther object to provide for a tendency of its reducing the pulverizedore, while undergoing the scouring operation, to a condition of greateriineness. y

Referring to the accompanying drawings, Figure l is a viewrepresentingmy improved apparatus in side elevation. Figs. 2 and 3 aresections taken, respectively, at the lines 2 and 3 on Fig. l and viewedas indicated by arrows. Fig. 4 is a broken section taken at the line 4on Fig. 3 and viewed in the direction of the arrow; and Fig. 5 is abroken section taken at the line 5 on Fig. 1, viewed in the direction ofthe arrow and enlarged.

As the generally-stated construction of my improved apparatus, it may bedescribed as involving a drum rotatably supported in re-A cumbentposition and divided by internal screen-diaphragms into a series ofintercommunicating chambers provided at intervals about the inner wallof the drum with transversely-extending ribs for raising and dropping,and thereby thoroughly agitating the ore by the rotation of the drum,there being interposed between the ore-feed and inlet end to the drum amixer and the outlet from the drum, involving a construction whereby thedischarge is directed from a side of the final chamber to the center ofthe drum-head, whence it is emitted in a stream.

A is the drum, shown as of cylindrical shape and as formed in annularflan ged sections fastened together at the circumferential ilanges Tr,at some of which the drum rests between `sponding with the flanges r,are fitted the perforated or screen-like diaphragms C, which divide theinterior of the drum into chambers C', by preference eight in number,and across which at intervals on the inner wall of the drum extendradially inward the ribs o. The

head A' of the drum has a central tubular trunnion extension n, whichenters the upright trough-shaped case D of a mixerI) through one of itssides, and which trough may be built of wood and is surmounted byahopper D2, and through the hollow trunnion extends from the oppositeside of the trough, where it is j ournaled in a bearing t, a rotaryshaft m, preferably hollow, and having its inner bearing, as shown inFig. 4, at the center of the first of the series of diaphragms C. At theentrances of the hollow trunnion and shaft m into the mixer-case areprovided the stuffing-boxes Z and l.

E and E are disk-shaped heads, formed of boiler metal and surroundingthe trunnion n to revolve with it, being to that end riveted to theannular flanges k' at opposite ends'of a sleeve k, formed in two hangedsections fastened together on the trunnion. (See Fig. 3.) The two headsare rigidly united by a number of interposed metal blades t', and atintervals about the peripheries of the heads are provided rigid paddlesE2.

The shaft m carries a conveyer h and a sprocket-wheel m', connected byan endless chain m3 with a sprocket-wheel m2 on the shaft p.

The head A2 at the discharge end, of the drum has an outlet-openin g gbetween its center and periphery, (see Fig. 5,) from which proceeds onthe outer face of the head a snaillike housing F, bolted in place andaffording a passage f, leading to the center of the head IOO and thereterminating in a forwardly-protruding discharge-spout e.

In the chambers C', I provide chilled-iron balls d, about, say, one andone-half inch in diameter, or broken pieces of hard rock or the like, toafford attrition-pieces, in suflicient quantity to fill each chamberabout onefourth full.

The operation is as follows: The pulverized ore mixed with water toreduce it to the consistency of a pulp is fed through the hopper D2 tothe mixer D While the shaft p', and consequently the drum, the heads EE', and the worm-shaft fm, is revolving. The amount of material fed intothe mixer should be suficient to keep the level therein somewhat abovethe point of discharge at the outletopening g. The action of the mixerthoroughly agitates and Works the pulpy mass, which enters the trunnionn and is therein worked into the drum by the conveyer h, which is gearedto rotate at a somewhat higher speed than the drum to tend to preventsediment in the hollow trunnion. On entering the first chamber C themass is subjected to the attrition action of the balls d by theshowering through it produced by the lifting and dropping action uponthem of the ribs 0, to which treatment the mass in each chamber issubjected, the chambers becoming successively supplied by percolation ofthe material through their screen walls. In the final chamber C thedischarge takes place at the opening g and is directed through thesnaillike passage f to the central spout e, whence the outflow is in theform of a regular stream.

When a run of the apparatus is completed, the drum should be brought toa standstill with its series of manholes c, with one of which eachchamber C is provided, at the bottom, so that on removing themanhole-covers at the end of a run the contents of the chambers may bereadily dumped.

Vhat I claim as new, and desire to secure by Letters Patent, is-

l. In an ore-scouring apparatus, the combination of arotatably-supported drum A divided internally by perforated partitions Cinto chambers C and having a discharge-outlet in one head, and a hollowtrunnion n on its opposite head, and an ore-mixer D comprising a troughand heads E and E' secured on said trunnion, connected by blades t', andcarrying paddles E2 on their periphery, substantially as described.

2. In an ore-scouring apparatus, the combination of arotatably-supported drumA divided internally by perforated partitions Cinto chambers C and having a discharge-outlet in one head and a hollowtrunnion n on its opposite head, an ore-mixer D comprising a trough andheads E and E secured on said trunnion and connected by bladest'carrying paddles E2 on their periphery, and a wormconveyer hin the trunnion on a rotatably-supported shaft m geared to the driving-shaft of theapparatus, substantially as described.

3. An ore-scouring apparatus comprising, in combinatiomtherotatably-supported drum A divided internally by perforated partitions Cinto chambers C', ribs o extending transversely of the chambers atintervals about the inner wall of the drum, attrition-pieces d in thechambers, an outlet-opening g in the drum-head A2 and a snaillikedischarge-passage f on said head, a hollow trunnion n leading centrallyfrom the drum-head A', an oremixer D comprising atrough D surmounted bya hopper D2, heads E and E fastened on the trunnion, connected by bladesi and carrying paddles E2 on their periphery, and a worm-conveyer 7L inthe trunnion on a rotatably-supported shaft m geared to the drivingshaftof the apparatus, the whole being constructed and arranged to operatesubstantially as described.

WILLIAM A. KONEMAN.

In presence of- M. J. FROST, W. N. WILLIAMS.

